Update 6/10/2013 - Malwarebytes is no longer being blocked in NIS/NAV/N360 20.4. Click here for more information
I know this is not going to fly with many people. But, during install. NIS will flag it as not compatible and causes conflicts. I do not use the real time module add on. I only use the program for on demand scanning. Especially since no AV is 100%. Word of warning on the next update for others are not surprised by this. I see no reason why you cannot disable the nis anti virus protection module. And then run a system scan with Malwarebytes. That is how I have always done it with no issues.